Papers by Author: Sang Hoon Chang

Abstract: This paper describes the results of structural analysis and loading test of a bogie frame. The purpose of the analysis and test is to evaluate the safety and functionality of the bogie frame under maximum load. The bogie system consist of the bogie frame, suspensions, wheel-sets, a brake system and a transmission system. Of these components, the bogie frame is the major component subjected to the vehicle and passenger loads. The evaluation method used the JIS E 4207 specifications throughout the FEM analysis and static load test. The test results have shown the bogie frame to be safe and stable under design load conditions.

Abstract: As the public application of the railway and the road increases, properly functioning and safe railway crossing between two means of transportation becomes more important. In the past, materials such as wood, asphalt, and steel were used for railway crossing panel. As these materials showed various drawbacks, the rubber panel was introduced for railway crossing panel. To encourage the use of the rubber panel, the structural action analyses of rubber panel were studied. In this research, using the finite-element method (FEM), several structural properties were analyzed and presented including the eigenvalue, stress, and displacement by a passing truck’s weight, and the thermal stress induced by the railway track.